If we’re looking at the reference list of responses that IIS could send, an HTTP response status 503 means Service Unavailable. In most of the cases, we have a 503.0, Application pool unavailable; and when we check the corresponding application pool, it shows “Stopped”....
This status code means that the server is unable to find the requested resource. In your internet browser this means that the URL is not recognized. Where in an API, this can also mean that the endpoint is valid but the resource itself does not exist. Servers may also send out the resp...
This means that the resource is now permanently located at another URI, specified by the Location: HTTP Response header. This has the same semantics as the301Moved Permanently HTTP response code, with the exception that theuser agentmust notchange the HTTP method used: If a POST was used in ...
Status Code 503 The 503 (Service Unavailable) status code also happens on the server-side (it’s in the 500 blocks, right?) This is similar to a 500 error and it usually means the server is unavailable—however, sometimes the code means it’s anexpectederror. While a 500 status code s...
503 FTP Response code A 503 response code may be sent in response to any command that requires the successful processing of previous commands first. It is a permanent negative reply, which means the client is discouraged from immediately sending the command again since the server will respond ...
For Lync Server, however, that SIP response code of 486 should instead be mapped to SIP response code 503. A response code of 503 triggers the retry mechanism in the outbound routing logic of Lync Server; that means that the system will try to find another gateway in order to complete th...
The numerical code (in brackets) identifies the response in error messages and in the log output.rescode The enumeration type containing all response codes.13.4.1 Termination "MSK_RES_OK" (0) No error occurred. "MSK_RES_TRM_MAX_ITERATIONS" (100000) The optimizer terminated at the maximum ...
The numerical code (in brackets) identifies the response in error messages and in the log output.9.4.1 Termination MSK_RES_OK (0) No error occurred. MSK_RES_TRM_MAX_ITERATIONS (100000) The optimizer terminated at the maximum number of iterations. MSK_RES_TRM_MAX_TIME (100001) The ...
For Skype for Business Server, however, that SIP response code of 486 should instead be mapped to SIP response code 503. A response code of 503 triggers the retry mechanism in the outbound routing logic of Skype for Business Server; that means that the system will try to find another ...
503 Service Unavailable: The server is not ready to handle the request, often due to maintenance or overload. 504 Gateway Timeout: The server, while acting as a gateway, did not receive a timely response from an upstream server. This list is a quick reference to understand each code’s ...